CN112534755A - Method and apparatus for applying cell restriction configuration - Google Patents

Method and apparatus for applying cell restriction configuration Download PDF

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Publication number
CN112534755A
CN112534755A CN201980051466.5A CN201980051466A CN112534755A CN 112534755 A CN112534755 A CN 112534755A CN 201980051466 A CN201980051466 A CN 201980051466A CN 112534755 A CN112534755 A CN 112534755A
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cell restriction
radio bearer
convergence protocol
packet data
copy
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CN112534755B (en
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约阿希姆·勒尔
拉维·库奇波特拉
普拉泰克·巴苏马利克
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Lenovo Singapore Pte Ltd
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Lenovo Singapore Pte Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L1/00—Arrangements for detecting or preventing errors in the information received
    • H04L1/08—Arrangements for detecting or preventing errors in the information received by repeating transmission, e.g. Verdan system
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/08—Access restriction or access information delivery, e.g. discovery data delivery
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup
    • H04W76/15—Setup of multiple wireless link connections
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W80/00—Wireless network protocols or protocol adaptations to wireless operation
    • H04W80/02—Data link layer protocols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W92/00—Interfaces specially adapted for wireless communication networks
    • H04W92/04—Interfaces between hierarchically different network devices
    • H04W92/10—Interfaces between hierarchically different network devices between terminal device and access point, i.e. wireless air interface

Abstract

A duplicate deactivated cell restriction configuration may be received (710) at a UE. The replication disabled cell restriction configuration may be a cell restriction configuration that the UE should apply to at least one LCH of the DRB that disables PDCP replication. The copy-disabled cell restriction configuration may be received when at least one DRB is configured with PDCP copying. The DRB of which replication is disabled may be a DRB of the at least one DRB configured with PDCP replication. The copy-disabled cell restriction configuration that the UE should apply may be applied (730) to at least one LCH of the DRB that disables PDCP copying.

Description

Method and apparatus for applying cell restriction configuration
Background
1. Field of the invention
The present disclosure relates to a method and apparatus for applying a cell restriction configuration.
2.Introduction to
Currently, wireless communication devices, such as User Equipment (UE), communicate with other communication devices using wireless signals. Devices exchange information with each other using data packets. Packet Data Convergence Protocol (PDCP) replication provides replication of packets where the same packet is replicated on different cells/carriers, such as for diversity gain purposes, for quality of service (QoS) purposes, or for other reasons. When introducing PDCP duplication for a New Radio (NR), it is agreed that for the Carrier Aggregation (CA) duplication case, it should be ensured that the same Protocol Data Units (PDUs), such as the original PDUs and the duplicate of the original PDUs, should not be sent on the same carrier. This would benefit from the diversity gain from transmitting PDUs on different carriers. Later, this cell restriction function of Logical Channels (LCHs) is implemented in a Logical Channel Prioritization (LCP) procedure.
Higher layer signaling, such as Radio Resource Control (RRC) signaling, configures a set of allowed serving cells for the LCH, which are cells on which data for the LCH can be sent. It is then agreed that the LCH to cell restriction function can be applied to any bearer, not just to duplicate bearers.
For example, according to Technical Specification (TS)36.321,
5.4.3.1 logical channel prioritization
5.4.3.1.1 overview
The logical channel prioritization procedure is applied whenever a new transmission is performed.
The RRC controls scheduling of uplink data for each logical channel of each Medium Access Control (MAC) entity by signaling:
-priority, wherein an increasing priority value indicates a lower priority level;
-a Prioritized Bit Rate (PBR);
-bucketSizeDuration, which sets the Bucket Size Duration (BSD).
RRC controls the LCP procedure additionally by configuring the mapping limits of each logical channel:
-allowedSCS-List, which sets allowed subcarrier spacing for transmission;
-maxPUSCH-Duration, which sets the maximum Physical Uplink Shared Channel (PUSCH) Duration allowed for transmission;
-configuredgrantype 1Allowed, which sets whether the configured grant type1 can be used for transmission;
-allowedServingCells, which set allowed cells for transmission.
The following UE variables are used for the logical channel prioritization procedure:
-Bj, which is maintained for each logical channel j.
When a logical channel is established, the MAC entity should initialize Bj of the logical channel to zero.
For each logical channel j, the MAC entity should:
1> before each instance of the LCP process, Bj is incremented by the product PBR × T, where T is the time elapsed since Bj was last incremented;
1> if the value of Bj is greater than the bucket size (i.e., PBR × BSD):
2> set Bj to bucket size.
Note that: the exact time for the UE to update Bj between LCP procedures depends on the UE implementation as long as Bj is up-to-date when LCP handles the grants.
5.4.3.1.2 selection of logical channels
When performing a new transmission, the MAC entity should:
1> selecting a logical channel for each Uplink (UL) grant that satisfies all of the following conditions:
2> the set of allowed subcarrier spacing index values in allowedSCS-List (if configured) includes a subcarrier spacing index associated with the UL grant; and
2> maxPUSCH-Duration (if configured) is greater than or equal to a PUSCH transmission Duration associated with a UL grant; and
2> configuredgrantype 1Allowed (if configured) is set to TRUE if the UL grant is a configured grant type 1; and
2> allowedServingCells (if configured) includes cell information associated with the UL grant.
Note that: the subcarrier spacing index, PUSCH transmission duration, and cell information are included in uplink transmission information received from lower layers for a corresponding scheduled uplink transmission.
PDCP replication is activated and deactivated by using medium access control element (MAC CE) signaling. In case the network deactivates replication of bearers configured for replication, the UE no longer applies the configured cell restrictions, i.e. allowedServingCells, to the corresponding LCH. Only when the replication is activated, the UE applies the configured cell restriction, i.e. allowedServingCells, to the LCH of the Data Radio Bearer (DRB). For example,
5.10 activation/deactivation of PDCP replication
If one or more DRBs are configured with PDCP replication, the network can activate and deactivate PDCP replication of the configured DRBs.
Activating and deactivating PDCP replication for the configured DRB by:
receiving the copy activation/deactivation MAC CE described in sub-clause 6.1.3.11.
For each DRB configured with PDCP replication, the MAC entity should:
1> if a duplicate activation/deactivation MAC CE that activates PDCP duplication of DRB is received:
2> indicate activation of PDCP replication of DRB to upper layers;
2> apply allowedServingCells to logical channels of DRB.
1> if a duplicate activation/deactivation MAC CE for PDCP replication for deactivation of DRB is received:
2> indicate deactivation of PDCP replication of DRB to upper layers;
2> allowedServingCells are not applied to the logical channels of the DRB.
Therefore, according to the current specifications, it is not possible to restrict the LCH of the duplicate radio bearer for the case where duplication is disabled.
Since the UE will not apply the cell restriction configuration to the LCH of the duplicate bearer when the duplication is deactivated as described above, whenever the PDCP duplication of the duplicate bearer has been deactivated, the base station, such as the gNB, will need to send an RRC reconfiguration message with the new cell restriction configuration to the UE to ensure that the UE also applies the cell restriction to the deactivated duplicate bearer. Since activation/deactivation of the duplication is considered to be a dynamic operation, i.e., depending on channel conditions, frequent RRC signaling is necessary, which is costly in terms of signaling overhead. This substantially undermines the benefits of the cell restriction function.
Drawings
In order to describe the manner in which advantages and features of the invention can be obtained, a description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings. The drawings depict only example embodiments of the invention and are not therefore to be considered to limit the scope of the invention. For clarity, the drawings may have been simplified and are not necessarily drawn to scale.
FIG. 1 is an example block diagram of a system in accordance with a possible embodiment;
fig. 2 is an example illustration of an LCH configuration Information Element (IE) according to a possible embodiment;
FIG. 3 is an example illustration of a duplicate activation/deactivation MAC CE according to a possible embodiment;
fig. 4 is an example illustration of an R/LCH identifier (LCID) MAC subheader according to a possible embodiment;
fig. 5 is an example illustration of an LCH configuration IE in accordance with a possible embodiment;
figure 6 is an example illustration of a morethinenelerlc segment of PDCP-config IE, according to a possible embodiment;
fig. 7 is an example flow chart illustrating operation of a wireless communication device according to a possible embodiment;
fig. 8 is an example flow chart illustrating operation of a wireless communication device in accordance with a possible embodiment; and
fig. 9 is an example block diagram of a device according to a possible embodiment.
Detailed Description
The embodiments provide a method and apparatus for applying a cell restriction configuration. For example, embodiments may provide LCH-to-cell restriction for duplicate bearers. According to a possible embodiment, a copy deactivated cell restriction configuration may be received at a UE. The replication disabled cell restriction configuration may be a cell restriction configuration that the UE should apply to at least one LCH of the DRB that disables PDCP replication. When at least one DRB is configured with PDCP replication, a replication-disabled cell restriction configuration may be received. The DRBs with deactivated replication may be DRBs of the at least one DRBs configured with PDCP replication. The copy-disabled cell restriction configuration that the UE should apply may be applied to at least one LCH of the DRB that disables PDCP copying.
According to another possible embodiment, at least one DRB may be configured for PDCP replication. A copy-deactivated cell restriction configuration may be signaled. The replication disabled cell restriction configuration may be a cell restriction configuration that the UE should apply to at least one LCH of the DRB that disables PDCP replication. The DRBs with deactivated replication may be DRBs of the at least one DRBs configured with PDCP replication.
Fig. 1 is an example block diagram of a system 100 according to a possible embodiment. System 100 may include a UE 110, at least one network entity 120 and 125, such as a base station, and a network 130. The UE 110 may be a wireless wide area network device, a user device, a wireless terminal, a portable wireless communication device, a smartphone, a cellular telephone, a clamshell phone, a personal digital assistant, a personal computer, a selective call receiver, an internet of things (IoT) device, a tablet computer, a laptop computer, or any other user device capable of sending and receiving communication signals over a wireless network. At least one of the network entities 120 and 125 may be a wireless wide area network base station, may be a NodeB, may be an enhanced NodeB (enb), may be a NR NodeB (gNB) such as a 5G NodeB, may be an unlicensed network base station, may be an access point, may be a base station controller, may be a network controller, may be a transmission/reception point (TRP), may be network entities of different types from each other, and/or may be any other network entity that may provide wireless access between a UE and a network.
Network 130 may include any type of network capable of sending and receiving wireless communication signals. For example, the network 130 may include a wireless communication network, a cellular telephone network, a Time Division Multiple Access (TDMA) -based network, a Code Division Multiple Access (CDMA) -based network, an Orthogonal Frequency Division Multiple Access (OFDMA) -based network, a Long Term Evolution (LTE) network, an NR network, a third generation partnership project (3GPP) -based network, a satellite communication network, a high-altitude platform network, the internet, and/or other communication networks.
In operation, UE 110 may communicate with network 130 via at least one network entity 120. For example, a UE may transmit and receive control signals on a control channel and user data signals on a data channel.
Fig. 2 is an example illustration of an LCH configuration IE 200 according to a possible embodiment. Using the LCH IE 200, such as the LogicalChannelConfig IE, higher layer signaling, such as signaling higher than the physical layer signaling, can configure the set of allowed serving cells, allowedservingcells, over which LCH data can be sent.
At least some embodiments may provide a solution that allows the network to restrict the LCH of deactivated duplicate radio bearers to certain cells without excessive signaling. Embodiments may use terminology to describe various messages and procedures outlined in the 3GPP LTE and NR specifications available at the time of filing.
According to a first possible embodiment, when deactivating a DRB configured for replication, a network entity such as network entity 120 may signal whether a cell restriction configuration, IE allowedServingCells, should also be applied to the LCH of the DRB after replication has been deactivated.
Fig. 3 is an example illustration of a duplicate activation/deactivation MAC CE 300 according to a possible embodiment. According to this variant of the first embodiment, a new replication activation/deactivation MAC CE may be introduced which may be used to (i) indicate the activation/deactivation status of PDCP replication configured with DRBs of PDCP replication and (ii) simultaneously indicate the cell restriction configuration, IE allowedServingCells, that should also be applied to the LCH of data radio bearers for which PDCP replication has been deactivated. The format of this copy activation/deactivation MAC CE may be the same as the format of the currently defined copy activation/deactivation MAC CE specified in TS 38.321. For example, this copy activation/deactivation MAC CE may have a fixed size and may consist of a single octet containing eight D fields. This duplicate activation/deactivation MAC CE may be identified by one of the reserved LCH IDs that is not currently in use.
For example, embodiments may be combined with TS38.321, TS38.321 may provide one octet of copy activation/deactivation MAC CE identified by the MAC PDU subheader with LCID specified in table 6.2.1-1 of TS38.321, i.e., LCID value for DL-SCH. The copy activation/deactivation MAC CE may have a fixed size and consist of a single octet containing eight D fields. For a MAC entity, the duplicate activation/deactivation MAC CE may be defined as follows: di: this field may indicate an activation/deactivation status of PDCP replication of DRB i, where i may be an ascending order of DRB IDs among DRBs configured with PDCP replication and a Radio Link Control (RLC) entity associated with this MAC entity. Can be combined with DiThe field is set to 1 to indicate that PDCP replication of DRB i should be activated. Can be combined with DiThe field is set to 0 to indicate that PDCP replication of DRB i should be disabled.
When the UE receives a new replication activated/deactivated MAC CE identified by the reserved LCID, the UE may deactivate replication and keep applying cell restriction only for the LCHs (primary RLC entity/LCH) of the bearer including the logical channel diversity as the primaryPath, or alternatively for all LCHs of the bearer, as configured by the IE allowedServingCells in the logical channel config IE. In the case when the UE receives a legacy duplicate activation/deactivation MAC CE, the UE may stop applying cell restriction until another activation/deactivation MAC CE is received, as specified in the current NR/LTE specification, and may simply deactivate duplication of the corresponding bearer.
Fig. 4 is an example illustration of an R/LCID MAC subheader 400 according to a possible embodiment. According to this variant of the first embodiment, the MAC subheader identifying the duplicate/active MAC CE may indicate whether cell restriction configuration should be applied to the LCH of the radio bearer deactivating PDCP duplication. According to TS38.321, R/LCID MAC subheader 400 may show a MAC subheader for duplicate activation/deactivation MAC CE.
To achieve this according to a possible embodiment, one of the reserved bits, 'R' bits, in the MAC subheader 400 may be used to indicate whether cell restriction should be applied to the DRB deactivating PDCP replication. One of the 'R' bits may be used, for example, as a "cell restriction ('CR') bit, which when set to '1' may indicate that cell restriction is also applied to the case of deactivating PDCP replication, whereas a 'CR' bit set to '0' may instruct the UE not to apply the configured cell restriction to the LCH of the radio bearer deactivating PDCP replication, which may be the behavior according to the NR specification with R/LCID MAC subheader in the absence of the 'CR' bit.
Fig. 5 is an example illustration of an LCH configuration IE 500 according to a possible embodiment. According to this second possible embodiment, the copy-inactive allowed serving cell IE may be signaled within an RRC (re) configuration message. The copy-down allowed serving cell IE may configure cell restrictions that the UE should apply to the LCH of the radio bearer for which PDCP copying is disabled. According to a variant of the second embodiment, this copy-disabled allowed serving cell IE may be included in the logical channelconfig IE as an allowedServingCells-duplicate IE shown in the LCH configuration IE 500.
According to a possible embodiment, the copy-disabled allowed serving cell IE may only exist for radio bearers configured for CA copying, i.e. a radio bearer may have two associated RLC entities belonging to the same MAC entity. According to this embodiment, a radio bearer configured for replication may have two cell restriction configurations. When the replication is activated, the UE may be required to follow the cell restriction configured by the IE allowedServingCells, which may be the currently specified behavior. For the case when replication is deactivated, the UE may be required to follow the cell restriction configured by the replication-deactivated allowed serving cell IE (if any), e.g., allowedServingCell-duplicate. This may allow the network to configure two different cell restrictions, such as when one is used for duplication situations and the other is used to deactivate duplication.
According to a third possible embodiment, the UE may keep applying the configured cell restriction configured by IE allowedServingCells in the LogicalChannelConfig IE also for the case of deactivated PDCP replication. According to this embodiment, the UE may stop duplicating PDCP PDUs of radio bearers for which PDCP duplication has been disabled, but still apply the configured cell restrictions for the LCHs associated with this radio bearer, at least for the LCHs applied to the "primary" LCH, i.e. configured as primaryPath. In release 15, only one "primary" LCH may be defined, but more than one may be possible in future releases.
The third embodiment may be implemented in RRC, depending on the possible implementation. According to a first possible option, a boolean or equivalent cell restriction continuation IE in the RRC configuration may explicitly indicate whether or not cell restriction continues, even when the duplication of bearers is deactivated. This can be achieved in a number of ways, such as by including 'continue-cell recovery after-duplicate' in the moreThan OnRLC within the PDCP-config IE or the logcalcellnelcon IE, but only for primaryPath.
Figure 6 is an example illustration of a morenthanone rlc segment 600 of PDCP-config IE according to a possible embodiment. The moretanOneRLC section 600 may include a continue-cell recovery after-duplicate field, which may indicate whether cell restriction continues even when replication of the bearer is deactivated.
According to a second possible option, the technical specification may specify that cell restriction may continue even when replication of the bearer is deactivated. For example, TS 38.331 and/or TS38.321 may specify that cell restriction may continue even when replication of the bearer is disabled.
According to another possible implementation, the third embodiment may be implemented in a MAC. For example, the MAC specification may specify that the UE may stop copying PDCP PDUs of a radio bearer for which PDCP copying has been disabled, but still apply the configured cell restriction for the LCH associated with this radio bearer. According to a first possible option, if the continue-cell recovery after-duplicate is set to TRUE in the MAC specification, instead of applying allowedServingCells, the UE may apply allowedServingCells to the LCH of the DRB. For example, the expression previously indicates that allowedServingCells are not applied to logical channels of a DRB. According to this embodiment, the wording may state,
5.10 activation/deactivation of PDCP replication
If one or more DRBs are configured with PDCP replication, the network can activate and deactivate PDCP replication for the configured DRBs.
Activating and deactivating PDCP replication for configured DRBs by:
receiving the copy activation/deactivation MAC CE described in sub-clause 6.1.3.11.
For each DRB configured with PDCP replication, the MAC entity should:
1> if a duplicate activation/deactivation MAC CE that activates PDCP duplication of DRB is received:
2> indicate activation of PDCP replication of DRB to upper layers;
2> apply allowedServingCells to logical channels of DRB.
1> if a duplicate activation/deactivation MAC CE for PDCP replication for deactivation of DRB is received:
2> indicate deactivation of PDCP replication of DRB to upper layers;
2> if the continue-cell recovery after-duplicate setting is TRUE
3> -applying allowedServingCells to logical channels of the DRB.
As another example, a word may state that,
5.10 activation/deactivation of PDCP replication
If one or more DRBs are configured with PDCP replication, the network can activate and deactivate PDCP replication for the configured DRBs.
Activating and deactivating PDCP replication for configured DRBs by:
receiving the copy activation/deactivation MAC CE described in sub-clause 6.1.3.11.
For each DRB configured with PDCP replication, the MAC entity should:
1> if a duplicate activation/deactivation MAC CE that activates PDCP duplication of DRB is received:
2> indicate activation of PDCP replication of DRB to upper layers;
2> apply allowedServingCells to logical channels of DRB.
1> if a duplicate activation/deactivation MAC CE for PDCP replication for deactivation of DRB is received:
2> indicate deactivation of PDCP replication of DRB to upper layers;
2> apply allowedServingCells to logical channels of DRB.
Fig. 7 is an example flow diagram 700 illustrating the operation of a wireless communication device, such as UE 110, in accordance with a possible embodiment. At 710, a copy deactivated cell restriction configuration can be received. When at least one DRB is configured with PDCP replication, a replication-disabled cell restriction configuration may be received. The DRB may be a service and data of the DRB may use a different cell. The copy-disabled cell restriction configuration may be a copy-disabled cell restriction configuration that the UE should apply to at least one LCH of the DRB that disables PDCP copying. The DRBs with deactivated replication may be DRBs of the at least one DRBs configured with PDCP replication. The at least one DRB may be configured with PDCP replication by receiving a higher layer signal, such as RRC, that configures the at least one DRB with PDCP replication.
According to a possible embodiment, the UE may have two restriction configurations, and when PDCP duplication is activated, it may apply one restriction configuration, and when PDCP duplication is deactivated, it may apply the other restriction configuration. Even though the restriction configurations may be different, one restriction configuration may have the same allowed cells as the other restriction configuration.
At 720, a determination can be made that PDCP replication has been disabled for at least one LCH of a DRB that has disabled PDCP replication. According to a possible embodiment, a copy deactivation signal indicating deactivation of PDCP copying of the DRB may be received, and a determination of deactivated PDCP copying may be made based on the copy deactivation signal.
At 730, the copy-deactivated cell restriction configuration that the UE should apply may be applied to at least one LCH of the DRB that deactivates PDCP copying. According to a possible embodiment, a copy disabled cell restriction configuration may be applied in response to determining that PDCP copying has been disabled. According to a related possible embodiment, the cell restriction configuration of copy deactivation may be applied in response to receiving a copy activation signal indicating that PDCP copying has been deactivated.
According to a possible embodiment, a second cell restriction configuration may be received. According to a possible embodiment, the second cell restriction configuration may be a cell restriction configuration that the UE should apply to at least one LCH of at least one DRB for which PDCP duplication is not configured. This second cell restriction configuration may be received instead of a copy-disabled cell restriction configuration of a DRB not configured for PDCP copying. The second cell restriction configuration that the UE should apply may be applied to at least one LCH of at least one DRB for which PDCP replication is not configured.
According to another possible embodiment, the second cell restriction configuration may be a cell restriction configuration that the UE should apply to at least one LCH of a DRB that activates PDCP duplication. This second cell restriction configuration may be sent in the same message as the copy disabled cell restriction configuration or may be sent in a different message. The second cell restriction configuration that the UE should apply may be applied to at least one LCH of the DRB in which PDCP replication is activated.
According to a possible embodiment, receiving the copy-deactivated cell restriction configuration may comprise receiving the copy-deactivated cell restriction IE in an RRC configuration message. The RRC signal may be received when the DRB is established or modified. The replication inactivated cell restriction IE may configure a replication inactivated cell restriction configuration that the UE should apply to at least one LCH of a DRB that deactivates PDCP replication. According to a possible embodiment, only one cell restriction IE may be received when replication is not configured.
The RRC configuration message may include a second cell restriction IE that configures a second cell restriction configuration that the UE should apply to at least one LCH of a DRB that activates PDCP replication. The cell restriction configuration may restrict the at least one LCH to a serving cell allowed for transmission. For example, the LCH can be limited based on the allowed cells for transmission by instructing the UE to apply the allowed cells for transmission to at least one LCH of the DRB, such as by instructing the UE to limit the LCH of the DRB to the allowed cells. For example, the UE may apply the configured cell restriction, allow edserving cells, to the LCH of the DRB by restricting the LCH of the DRB to allowed cells. As another example, the copy inactivated cell restriction IE may be a first allowedServingCells IE and the second cell restriction IE may be a second allowedServingCells IE. For example, the allowedServingCells IE and the allowedServingCells-duplicate IE may be sent in the same RRC message.
According to a possible embodiment, a copy activation signal may be received. The copy activation signal may indicate activation of PDCP copying of a DRB of the at least one DRB configured with PDCP copying. The second cell restriction configuration that the UE should apply may be applied to at least one LCH of a DRB that activates PDCP replication. The second cell restriction configuration may be applied in response to receiving the copy activation signal.
Fig. 8 is an example flow chart 800 illustrating operation of a wireless communication device, such as network entity 120, according to a possible embodiment. At 810, at least one DRB may be configured for PDCP replication. At least one DRB may be configured with PDCP duplication by sending a higher layer signal, such as RRC, that configures the at least one DRB with PDCP duplication.
At 820, a copy deactivated cell restriction configuration can be signaled. The copy-disabled cell restriction configuration may be a copy-disabled cell restriction configuration that the UE should apply to at least one LCH of the DRB that disables PDCP copying. The DRBs with deactivated replication may be DRBs of the at least one DRBs configured with PDCP replication.
According to a possible embodiment, a copy deactivation signal indicating deactivation of PDCP copying of the DRB may be transmitted. For example, a determination may be made that a DRB of the at least one DRB configured with PDCP replication should be deactivated, and a replication deactivation signal may be transmitted in response to determining that a DRB of the at least one DRB configured with PDCP replication should be deactivated. For example, a determination may be made as to whether the channel conditions are sufficiently good. If the channel conditions are good enough, the PDCP duplication can be turned off.
According to a possible embodiment, the second cell restriction configuration may be signaled. According to a possible embodiment, the second cell restriction configuration may be a cell restriction configuration that the UE should apply to at least one LCH of at least one DRB for which PDCP duplication is not configured. This second cell restriction configuration may be sent instead of a copy-disabled cell restriction configuration for DRBs for which PDCP copying is not configured. According to another possible embodiment, the second cell restriction configuration may be a cell restriction configuration that the UE should apply to at least one LCH of a DRB that activates PDCP duplication. This second cell restriction configuration may be sent in the same message as the copy disabled cell restriction configuration or may be sent in a different message.
According to a possible embodiment, signaling the copy-inactive cell restriction configuration may comprise signaling the copy-inactive cell restriction IE in an RRC configuration message. The replication inactivated cell restriction IE may configure a replication inactivated cell restriction configuration that the UE should apply to at least one LCH of a DRB that deactivates PDCP replication. According to a possible embodiment, only one cell restriction IE may be transmitted when no replication is configured. The RRC signal may be transmitted when the DRB is established or modified.
The RRC configuration message may include a second cell restriction IE that configures a second cell restriction configuration that the UE should apply to at least one LCH of a DRB that activates PDCP replication. The cell restriction configuration may restrict the at least one LCH to a serving cell allowed for transmission. For example, the LCH can be limited based on the allowed cells for transmission by instructing the UE to apply the allowed cells for transmission to at least one LCH of the DRB, such as by instructing the UE to limit the LCH of the DRB to the allowed cells. As another example, the UE may apply a configured cell restriction, allow edserving cells, to the LCH of the DRB by restricting the LCH of the DRB to allowed cells. The copy inactivated cell restriction IE may be a first allowedServingCells IE and the second cell restriction IE may be a second allowedServingCells IE. For example, the allowedServingCells IE and the allowedServingCells-duplicate IE may be sent in the same RRC message. A duplication activation signal indicating activation of PDCP duplication of a DRB of the at least one DRB configured with PDCP duplication may be transmitted.
It should be understood that although specific steps are shown in the figures, various additional or different steps may be performed according to embodiments, and one or more of the specific steps may be completely rearranged, repeated, or eliminated according to embodiments. Moreover, some steps performed may be repeated on a continuing or continuous basis while other steps are performed. Further, different steps may be performed by different elements or within a single element of the disclosed embodiments.
Fig. 9 is an example block diagram of an apparatus 900 such as UE 110, network entity 120, or any other wireless communication device disclosed herein, according to a possible embodiment. The device 900 may include a housing 910, a controller 920 coupled to the housing 910, audio input and output circuitry 930 coupled to the controller 920, a display 940 coupled to the controller 920, a memory 950 coupled to the controller 920, a user interface 960 coupled to the controller 920, a transceiver 970 coupled to the controller 920, at least one antenna 975 coupled to the transceiver 970, and a network interface 980 coupled to the controller 920. Device 900 may not necessarily include all illustrated elements for different embodiments of the disclosure. The device 900 may perform the methods described in all embodiments.
The display 940 may be a viewfinder, a Liquid Crystal Display (LCD), a Light Emitting Diode (LED) display, an Organic Light Emitting Diode (OLED) display, a plasma display, a projection display, a touch screen, or any other device that displays information. Transceiver 970 may be one or more transceivers that may include a transmitter and/or a receiver. The audio input and output circuitry 930 may include a microphone, a speaker, a transducer, or any other audio input and output circuitry. The user interface 960 may include a keypad, keyboard, button, touch pad, joystick, touch screen display, another additional display, or any other device that may be used to provide an interface between a user and an electronic device. The network interface 980 may be a Universal Serial Bus (USB) port, an ethernet port, an infrared transmitter/receiver, an IEEE 1394 port, a wireless transceiver, a WLAN transceiver, or any other interface that can connect a device to a network, apparatus, and/or computer and can send and receive data communication signals. The memory 950 may include Random Access Memory (RAM), read only memory (RON), optical memory, solid state memory, flash memory, removable memory, a hard drive, a buffer, or any other memory that may be coupled to a device.
The device 900 or controller 920 may implement any operating system, such as Microsoft Windows
Figure BDA0002928770190000161
AndroidTMOr any other operating system. The device operating software may be written in any programming language such as C, C + +, Java, or Visual Basic, for example. Device software may also be found in such as, for example
Figure BDA0002928770190000162
A frame,
Figure BDA0002928770190000163
An application framework of the framework, or any other application framework. The software and/or operating system may be stored in memory 950, elsewhere on device 900, in cloud storage, and/or anywhere else where the software and/or operating system may be stored. The device 900 or the controller 920 may also use hardware to implement the disclosed operations. For example, the controller 920 may be any programmable processor. Further, the controller 920 may perform some or all of the disclosed operations. For example, some operations may be performed using cloud computing and controller 920 may perform other operations. The disclosed embodiments may also be implemented on a general purpose or special purpose computer, a programmed microprocessor or microcontroller, peripheral integrated circuit elements, application specific integrated circuits or other integrated circuits, hardware/electronic logic circuits such as discrete element circuits, programmable logic devices such as programmable logic arrays, field programmable gate arrays, or the like. In general, the controller 920 can be an operational-capable device and implement the disclosureAny controller or processor device or devices of an embodiment. Some or all of the additional elements of device 900 may also perform some or all of the operations of the disclosed embodiments. In operation, device 900 may perform the methods and operations of the disclosed embodiments. For example, transceiver 970 may transmit and receive signals including control signals and data signals and including information, such as control and data information. Controller 920 may generate and process transmitted and received signals and information.
In operation, as a UE, transceiver 970 can receive a copy-disabled cell restriction configuration that device 900 should apply to at least one LCH of a DRB that disables PDCP copying. The transceiver 970 may receive a copy-disabled cell restriction configuration when at least one DRB is configured with PDCP replication. The DRBs with deactivated replication may be DRBs of the at least one DRBs configured with PDCP replication. The controller 920 may apply a copy disabled cell restriction configuration that the device 900 should apply to at least one LCH of a DRB that disables PDCP copying.
According to a possible embodiment, the controller 920 may determine that PDCP replication has been disabled for at least one LCH of a DRB that has disabled PDCP replication. The controller 920 may apply a copy disabled cell restriction configuration in response to determining that PDCP copying has been disabled.
According to a possible embodiment, the transceiver 970 may receive a copy deactivation signal indicating deactivation of PDCP copying of the DRB. The controller 920 may apply a cell restriction configuration of copy deactivation in response to receiving a copy activation signal indicating that PDCP copying has been deactivated.
According to a possible embodiment, the transceiver 970 may receive a second cell restriction configuration that the device 900 should apply to at least one LCH of at least one DRB for which PDCP replication is not configured. The controller 920 may apply a second cell restriction configuration that the device 900 should apply to at least one LCH of at least one DRB for which PDCP replication is not configured.
According to another possible embodiment, the transceiver 920 may receive a second cell restriction configuration that the device 900 should apply to at least one LCH of a DRB that activates PDCP replication. The controller 920 may apply a second cell restriction configuration that the device 900 should apply to at least one LCH of a DRB that activates PDCP replication.
According to another possible embodiment, transceiver 970 may receive the copy-inactive cell restriction configuration by receiving the copy-inactive cell restriction IE in an RRC configuration message. The copy inactivated cell restriction IE may configure a copy inactivated cell restriction configuration that the device 900 should apply to at least one LCH of a DRB that deactivates PDCP replication.
According to a possible embodiment, the RRC configuration message may include a second cell restriction IE that configures a second cell restriction configuration that the device 900 should apply to at least one LCH of a DRB that activates PDCP replication. According to possible options, the copy inactivated cell restriction IE may be a first allowedServingCells IE and the second cell restriction IE may be a second allowedServingCells IE. According to another possible option, the transceiver 970 may receive a duplication activation signal indicating activation of PDCP duplication of at least one DRB configured with PDCP duplication, and the controller 920 may apply a second cell restriction configuration to which the device 900 should apply to at least one LCH of the DRB activating PDCP duplication in response to receiving the duplication activation signal.
In operation, as a network entity, the controller 920 may configure at least one DRB for PDCP replication. The transceiver 970 may transmit a copy deactivation signal indicating deactivation of PDCP copying of the DRB. The transceiver 970 may alternately transmit a duplication activation signal indicating activation of PDCP duplication of a DRB of the at least one DRB configured with PDCP duplication. The transceiver 970 may signal a copy-deactivated cell restriction configuration that the UE should apply to at least one LCH of a DRB that deactivates PDCP copying. The DRBs with deactivated replication may be DRBs of the at least one DRBs configured with PDCP replication.
According to a possible embodiment, the controller 920 may determine that a DRB of the at least one DRB configured with PDCP replication should be deactivated. The transceiver 970 may transmit a copy deactivation signal in response to determining that a DRB of the at least one DRB configured with PDCP copying should be deactivated.
According to a possible embodiment, the transceiver 970 may signal a second cell restriction configuration that the UE should apply to at least one LCH of at least one DRB for which PDCP replication is not configured. According to another possible embodiment, the transceiver 970 may signal a different second cell restriction configuration that the UE should apply to at least one LCH of a DRB in which PDCP replication is activated.
According to a possible embodiment, transceiver 970 may signal the copy-inactive cell restriction configuration by signaling the copy-inactive cell restriction IE in an RRC configuration message. The replication inactivated cell restriction IE may configure a replication inactivated cell restriction configuration that the UE should apply to at least one LCH of a DRB that deactivates PDCP replication.
According to a possible embodiment, the RRC configuration message may include a second cell restriction IE that configures a second cell restriction configuration that the UE should apply to at least one LCH of a DRB that activates PDCP duplication. The cell restriction configuration may restrict the at least one LCH to a serving cell allowed for transmission. For example, the LCH can be limited based on the allowed cells for transmission by instructing the UE to apply the allowed cells for transmission to at least one LCH of the DRB, such as by instructing the UE to limit the LCH of the DRB to the allowed cells. For example, the UE may apply the configured cell restriction, allow edserving cells, to the LCH of the DRB by restricting the LCH of the DRB to allowed cells.
According to a possible embodiment, the copy inactivated cell restriction IE may be the first allowedServingCells IE. The second cell restriction IE may be a second allowedServingCells IE. For example, the allowedServingCells IE and the allowedServingCells-duplicate IE may be sent in the same RRC message.
At least some methods of the present disclosure may be implemented on a programmed processor. However, the controllers, flow charts and modules may also be implemented on a general purpose or special purpose computer, a programmed microprocessor or microcontroller and peripheral integrated circuit elements, integrated circuits, hardwired electronics, or logic circuits such as discrete element circuits, programmable logic devices, or the like. In general, any device on which resides a finite state machine capable of implementing the flowcharts shown in the figures may be used to implement the processor functions of this disclosure.
At least some embodiments can improve the operation of the disclosed devices. Also, while the present disclosure has been described with respect to specific embodiments thereof, it is evident that many alternatives, modifications, and variations will be apparent to those skilled in the art. For example, various components of the embodiments may be interchanged, added, or substituted in the other embodiments. Moreover, all of the elements of each figure are not necessary for operation of the disclosed embodiments. For example, those of ordinary skill in the art of the disclosed embodiments will make and use the teachings of the present disclosure by simply employing the elements of the independent claims. Accordingly, the embodiments of the disclosure set forth herein are intended to be illustrative, not limiting. Various changes may be made without departing from the spirit and scope of the disclosure.
In this document, relational terms such as "first," "second," and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Followed by the tabulated phrase "at least one of …", "at least one selected from the group consisting of: .. "or" at least one selected from … "is defined to mean one, some, or all, but not necessarily all, of the elements in the list. The terms "comprises," "comprising," "including," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further restriction, an element(s) modified by "a," "an," etc. does not exclude the presence of additional identical elements in a process, method, article, or apparatus that comprises the element. Moreover, the term another is defined as at least a second or more. The terms "comprising", "having", and the like, as used herein, are defined as comprising. Furthermore, the background section is written by the inventors themselves for an understanding of the background of some embodiments at the time of filing, and includes their own recognition of any problems with the prior art and/or problems experienced in their own work.

Claims (19)

1. A method in a user equipment, the method comprising:
receiving, at the user equipment, a copy-deactivated cell restriction configuration when at least one data radio bearer is configured with packet data convergence protocol duplication, the user equipment should apply the copy-deactivated cell restriction configuration to at least one logical channel of the data radio bearer in which packet data convergence protocol duplication is deactivated, wherein the data radio bearer in which duplication is deactivated comprises a data radio bearer of the at least one data radio bearer configured with packet data convergence protocol duplication; and
applying the copy inactivated cell restriction configuration, the user equipment should apply the copy inactivated cell restriction configuration to the at least one logical channel of a data radio bearer for which packet data convergence protocol copying is inactivated.
2. The method of claim 1, further comprising determining that packet data convergence protocol duplication has been disabled for the at least one logical channel of the data radio bearer that disabled packet data convergence protocol duplication,
wherein applying comprises applying the copy-disabled cell restriction configuration in response to determining that packet data convergence protocol copying has been disabled.
3. The method of claim 1, further comprising receiving a copy deactivation signal indicating deactivation of packet data convergence protocol copying of the data radio bearer,
wherein applying comprises applying the copy disabled cell restriction configuration in response to receiving the copy activation signal indicating that packet data convergence protocol copying has been disabled.
4. The method of claim 1, further comprising:
receiving a second cell restriction configuration which the user equipment should apply to at least one logical channel of at least one data radio bearer for which no packet data convergence protocol replication is configured, and
applying the second cell restriction configuration, the user equipment should apply the second cell restriction configuration to at least one logical channel of at least one data radio bearer for which no packet data convergence protocol duplication is configured.
5. The method of claim 1, further comprising:
receiving a second cell restriction configuration that the user equipment should apply to at least one logical channel of a data radio bearer for which packet data convergence protocol replication is activated; and
applying the second cell restriction configuration, the user equipment should apply the second cell restriction configuration to at least one logical channel of a data radio bearer for which packet data convergence protocol replication is activated.
6. The method according to claim 1, wherein receiving the copy-deactivated cell restriction configuration comprises receiving a copy-deactivated cell restriction information element in a radio resource control configuration message, wherein the copy-deactivated cell restriction information element configures the copy-deactivated cell restriction configuration that the user equipment should apply to the at least one logical channel of the data radio bearer that deactivates packet data convergence protocol copying.
7. The method according to claim 6, wherein the radio resource control configuration message comprises a second cell restriction information element configuring a second cell restriction configuration that the user equipment should apply to at least one logical channel of a data radio bearer activating packet data convergence protocol replication.
8. The method of claim 7, wherein the first and second light sources are selected from the group consisting of,
wherein the copy-disabled cell restriction information element comprises a first allowedServingCells information element, and
wherein the second cell restriction information element comprises a second allowedServingCells information element.
9. The method of claim 7, further comprising:
receiving a duplication activation signal indicating activation of a packet data convergence protocol duplication of a data radio bearer of the at least one data radio bearer configured with the packet data convergence protocol duplication, and
applying the second cell restriction configuration in response to receiving the duplication activation signal, the second cell restriction configuration the user equipment should apply to at least one logical channel of a data radio bearer that activates packet data convergence protocol duplication.
10. An apparatus, the apparatus comprising:
a transceiver to receive a duplication-deactivated cell restriction configuration when at least one data radio bearer is configured with packet data convergence protocol duplication, the apparatus should apply the duplication-deactivated cell restriction configuration to at least one logical channel of a data radio bearer that deactivates packet data convergence protocol duplication, wherein the data radio bearer that deactivates duplication comprises a data radio bearer of the at least one data radio bearer that is configured with packet data convergence protocol duplication; and
a controller to apply the replication deactivated cell restriction configuration, which the apparatus should apply to the at least one logical channel of a data radio bearer deactivating packet data convergence protocol replication.
11. The apparatus as set forth in claim 10, wherein,
wherein the controller determines that packet data convergence protocol duplication has been disabled for the at least one logical channel of the data radio bearer that disabled packet data convergence protocol duplication, and
wherein the controller applies the replication disabled cell restriction configuration in response to determining that packet data convergence protocol replication has been disabled.
12. The apparatus as set forth in claim 10, wherein,
wherein the transceiver receives a copy deactivation signal indicating deactivation of packet data convergence protocol copying of the data radio bearer, an
Wherein the controller applies the copy deactivated cell restriction configuration in response to receiving the copy activation signal indicating that packet data convergence protocol copying has been deactivated.
13. The apparatus as set forth in claim 10, wherein,
wherein the transceiver receives a second cell restriction configuration that the device should apply to at least one logical channel of at least one data radio bearer for which packet data convergence protocol replication is not configured, and
wherein the controller applies the second cell restriction configuration which the device should apply to at least one logical channel of at least one data radio bearer for which packet data convergence protocol replication is not configured.
14. The apparatus as set forth in claim 10, wherein,
wherein the transceiver receives a second cell restriction configuration which the device should apply to at least one logical channel of a data radio bearer for which packet data convergence protocol replication is activated, and
wherein the controller applies the second cell restriction configuration which the user equipment should apply to at least one logical channel of a data radio bearer in which packet data convergence protocol replication is activated.
15. The apparatus according to claim 10, wherein the transceiver receives the copy-deactivated cell restriction configuration by receiving a copy-deactivated cell restriction information element in a radio resource control configuration message, wherein the copy-deactivated cell restriction information element configures the copy-deactivated cell restriction configuration that the apparatus should apply to the at least one logical channel of the data radio bearer that deactivates packet data convergence protocol copying.
16. The apparatus according to claim 15, wherein the radio resource control configuration message includes a second cell restriction information element, the second cell restriction information element configuring a second cell restriction configuration that the apparatus should apply to at least one logical channel of a data radio bearer that activates packet data convergence protocol replication.
17. The apparatus as set forth in claim 16, wherein,
wherein the copy-disabled cell restriction information element comprises a first allowedServingCells information element, and
wherein the second cell restriction information element comprises a second allowedServingCells information element.
18. The apparatus as set forth in claim 16, wherein,
wherein the transceiver receives a duplication activation signal indicating activation of packet data convergence protocol duplication of a data radio bearer of the at least one data radio bearer configured with the packet data convergence protocol duplication, and
wherein the controller applies the second cell restriction configuration in response to receiving the duplication activation signal, the second cell restriction configuration the device should apply to activate at least one logical channel of a data radio bearer for packet data convergence protocol duplication.
19. A method in a user equipment, the method comprising:
receiving, at the user equipment, a copy-deactivated cell restriction information element in a radio resource control configuration message when at least one data radio bearer is configured with packet data convergence protocol copying,
wherein the replication disabled cell restriction information element configures a replication disabled cell restriction configuration that the user equipment should apply to at least one logical channel of the data radio bearer that disables packet data convergence protocol replication, and
wherein the data radio bearer for which replication is disabled comprises a data radio bearer of the at least one data radio bearer configured with packet data convergence protocol replication;
receiving a copy deactivation signal indicating deactivation of packet data convergence protocol copying of the data radio bearer; and
applying the copy-deactivated cell restriction configuration in response to receiving the copy activation signal indicating that packet data convergence protocol copying has been deactivated.
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